Metal nanoparticles in the air: state of the art and future perspectives
Nanoparticles containing metals in their structure constitute an increasingly large group of substances present in the air.
Silver sulfide nanoparticles in aqueous environments: formation, transformation and toxicity
Formation and transformation of silver sulfide nanoparticles occur in both engineered and natural water systems with potential toxic effects to aqueous organisms.
Aggregation morphology is a key factor determining protein adsorption on graphene oxide and reduced graphene oxide nanomaterials
The surface properties of graphene-based materials determine their protein-binding capacities via modulating the aggregation morphology of these materials.
Arsenite oxyanions affect CeO2 nanoparticle dissolution and colloidal stability
Exposing ceria nanoparticles to high arsenite concentrations will trigger aggregation and settling, while lower concentrations promote dissolution through redox interactions.
Complementary colloid and collector nanoscale heterogeneity explains microparticle retention under unfavorable conditions
By incorporating discrete representative nanoscale heterogeneity (DRNH) on simulated surfaces, we constrained the scales and prevalence of nanoscale heterogeneity relevant to particle transport and retention in environmental granular media.
Inorganic salts and organic matter effects on nanorod, nanowire, and nanoplate MoO3 aggregation, dissolution, and photocatalysis
Inorganic salts (NaCl and CaCl2) and organic material (humic acid and extracellular polymeric substances) have differing effects on the aquatic stability and photocatalytic activity of structurally different MoO3 materials.
Effect of calcination temperature on neptunium dioxide microstructure and dissolution
Solubility of neptunium dioxide decreases as microstructure grain size increases, likely due to decreasing surface free energy and surface area.
How does calcium drive the structural organization of iron–organic matter aggregates? A multiscale investigation
Calcium drives the structural transitions of iron–organic matter associations from colloidal aggregates to a non-colloidal micrometric network, subsequently controlling their mobility and the iron surface reactivity.
Formation and transformation of schwertmannite through direct Fe3+ hydrolysis under various geochemical conditions
Formation and transformation of schwertmannite through direct Fe3+ hydrolysis were systematically explored under various geochemical conditions.
Grain boundary facilitated dissolution of nanocrystalline NpO2(s) from legacy waste processing
Nanocrystalline NpO2(s) dissolves preferentially at grain boundaries, producing aqueous and colloidal neptunium. Dissolution mechanisms may impact the environmental fate of NpO2(s) in legacy radioactive waste management.
Photo-production of reactive oxygen species and degradation of dissolved organic matter by hematite nanoplates functionalized by adsorbed oxalate
The geochemical cycling of iron and carbon can couple in unique ways in the euphotic zone of aquatic systems.
Trophic transfer of CuO NPs from sediment to worms (Tubifex tubifex) to fish (Gasterosteus aculeatus): a comparative study of dissolved Cu and NPs enriched with a stable isotope tracer (65Cu)
This study used stable isotope-labeled copper oxide nanoparticles (65CuO NPs) to determine their trophic transfer potential from sediment to worms to fish at environmentally realistic exposure doses and compared to dissolved Cu (65CuCl2).
Nanoparticle affinity for natural soils: a functional assay for determining particle attachment efficiency in complex systems
Few standardized methods and reference systems have been established for evaluating the behavior of engineered nanomaterials in complex media like natural soils.
Effect of freeze/thaw on aggregation and transport of nano-TiO2 in saturated porous media
Research has focused on nanoparticle (NP) aggregation and transport behavior in saturated granular porous media, but few studies have looked at the effect that temperature variability associated with winter conditions will have on engineered NPs.
Formation of Fe(III)–As(V) complexes: effect on the solubility of ferric hydroxide precipitates and molecular structural identification
Soluble Fe(III)–As(V) complexes were found at both acidic and neutral conditions, which significantly change the solubility of ferric oxides.
Emerging investigator series: ion diffusivities in nanoconfined interfacial water films contribute to mineral carbonation thresholds
Mineral carbonation reactivity trends and thresholds in nanoconfined water films delineated with in situ X-ray diffraction and molecular simulations.
Effects of pH and electrolytes on the sheet-to-sheet aggregation mode of graphene oxide in aqueous solutions
Aggregation mode mediated by protonation and metal cations.
Incorporation of Pb(II) into hematite during ferrihydrite transformation
Ferrihydrite is ubiquitous in natural environments, and its transformation significantly influences the fate of heavy metals.
Tracing of iron nanoparticles using an elemental signatures approach: laboratory and field-scale verification
A new analytical approach for environmental tracing of iron nanoparticles used for nanoremediation has been developed. The methodology is based on ICP-MS analysis of the elemental signature of the nanoparticles.
A model sensitivity analysis to determine the most important physicochemical properties driving environmental fate and exposure of engineered nanoparticles
Sensitivity analyses indicate attachment efficiency and transformation rate constant are most important in modeling environmental fate of engineered nanoparticles.
Transformation of cerium dioxide nanoparticles during sewage sludge incineration
The incineration of sewage sludge leads to the incorporation of Ce from CeO2 nanoparticles into mineral structures.
“Switching on” iron in clay minerals
We discovered a new mechanism explaining why iron in its oxidized form Fe(III) in clay minerals is reactive only in the presence of trace amounts of its reduced form—Fe(II).
Heterogeneous conversion of SO2 on nano α-Fe2O3: the effects of morphology, light illumination and relative humidity
Hematite is one of the most important components in atmospheric mineral aerosols, which always presents different morphologies due to its different formation processes and various sources.
Transformation of Ag ions into Ag nanoparticle-loaded AgCl microcubes in the plant root zone
Silver ions can be naturally transformed into silver nanoparticles due to the plant root exudate-mediated photoreduction of silver chloride microcubes.
Nano zero-valent iron aging interacts with the soil microbial community: a microcosm study
This study is among the first to reveal nZVI aging in the soil ecosystem and its interactions with the soil microbial community.
Ferrihydrite transformation under the impact of humic acid and Pb: kinetics, nanoscale mechanisms, and implications for C and Pb dynamics
We, at nanoscale, demonstrated a visualized description of ferrihydrite transformation to crystalline Fe oxides under the impact of Pb and HA.
Comparative assessment of the phase transfer behaviour of InP/ZnS and CuInS/ZnS quantum dots and CdSe/ZnS quantum dots under varying environmental conditions
It is vital to assess the behavior of quantum dots in different environmental media to determine their environmental impacts and potential health risks.
Transformation of silver nanoparticle consumer products during simulated usage and disposal
Sequential exposure of silver nanoparticle suspensions to various media gives new insight to the environmental fate of nano-enabled consumer products.
Determination of the bioaccessible fraction of cupric oxide nanoparticles in soils using an in vitro human digestibility simulation
This study looks at the potential for ingested nanomaterials dosed in soil, to become bioaccessible for human intestinal absorption.
Natural organic matter inhibits aggregation of few-layered black phosphorus in mono- and divalent electrolyte solutions
NOM coating enabled stabilization of BPs in CaCl2 solutions via steric repulsion and isolating Ca2+ ions from interaction with BPs.
About this collection
This web collection includes research articles published in Environmental Science: Nano featuring nanomaterial environmental fate studies.